JP2000245574A - Bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed enabling smoothly and certainly move a person lying down on the bed from a lying position to a sitting position, keeping the position of his buttocks in the same position as he is lying. SOLUTION: A bed 1 is equipped with a supporting frame for the upper half of body 3, a leg part supporting frame 4 and a buttock supporting frame 5, all of which are freely capable to move up and down toward a horizontal fixed frame 2. The buttock supporting frame 5 is structured to tilt down from the leg part supporting frame 4 to the side of the supporting frame for the upper half of body 3, being interlocked with the rising of the supporting frame for the upper half of body 3. Then, as bending to change the posture of a person on the bed from a lying state to a sitting state, a mattress placed on the supporting frames maintains its placement on the supporting frames without sliding on the supporting frames. In addition, the mattress is transformed smoothly and certainly into a position roughly fitting in a bending position of the supporting frames for the upper half of the body and the buttocks supporting frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed which enables a person lying on a bed to smoothly and reliably change from a lying state to a sitting state.

[0002]

2. Description of the Related Art Hitherto, an upper body supporting frame for supporting an upper body among supporting frames for supporting a person lying on a bed has been erected, so that the person lying on the bed can be laid on the bed without burdening the person. Beds have been proposed that allow a person to be placed in a sitting state from a lying state.

[0003] However, in the beds proposed so far, only the upper body supporting frame is merely in the upright state. Therefore, if the upper body supporting frame is in the upright state, the bed is placed on the supporting frame. The mattress that has been placed follows the displacement of the upper body support frame to the upright state, cannot smoothly change to the bent state, and slides and displaces in the leg direction, and those lying on the mattress also move in the leg direction. Since the seat is shifted, it is necessary to re-seat at the original position when the seat is seated, and the operation is particularly burdensome for the elderly and the sick.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a person lying on a bed can be smoothly and reliably moved from a lying state while maintaining the position of the buttocks of the person lying on the bed in the lying state. Provided is a bed that can be in a seated state.

[0005]

According to a first aspect of the present invention, there is provided a bed including an upper body supporting frame which can be raised and lowered on a horizontal rectangular fixed frame, a leg supporting frame which can be bent in a mountain shape, and an upper body supporting the same. In a bed having a buttocks support frame interposed between a frame and a leg support frame, the buttocks support frame moves from the leg support frame toward the upper body support frame in conjunction with the upright of the upper body support frame. And tilted downward.

According to a second aspect of the present invention, in the bed according to the first aspect, the tilting means of the buttocks support frame includes:
The base end of the upper body supporting frame pivotally attached to the horizontal fixing frame is formed at the projecting base end projecting from the pivoted portion toward the buttocks supporting frame, while the buttocks supporting frame is attached to the horizontal fixing frame. The hip support frame is supported so as to be tiltable downward from the distal end side toward the base end side, and the base end of the buttocks support frame is refractively connected to the protruding base end of the upper body support frame.

[0007]

The operation of the bed according to the present invention will be described. In using the bed of the present invention, first, a mattress is placed on the upper body supporting frame, the buttocks supporting frame, and the leg supporting frame of the bed, and a person lies on the mattress.

In order to place a person lying on the bed in a sitting state, the upper body supporting frame supporting the upper body of the lying person is displaced to an upright state,
The buttocks support frame tilts downward from the leg support frame side toward the upper body support frame side in conjunction with the standing of the upper body support frame.

Then, the mattress placed on the support frame allows the portion placed on the buttocks support frame to tilt downward from the leg support frame side of the buttocks support frame toward the upper body support frame side. Dropping down while following, maintaining the mounting position on the support frame without sliding on the support frame, in a state substantially matching the bending state of the upper body support frame and the buttock support frame Deforms smoothly and reliably.

Therefore, the upper body of the person lying on the bed is kept upright by the upper body supporting frame while keeping the buttocks in the lying position, and the person is smoothly and securely seated without feeling burden. It is not necessary to perform an operation such as re-seating after being seated like a bed.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a bed according to the present invention will be described with reference to the drawings. The bed 1 is, as shown in FIG.
An upper body support frame 3, a leg support frame 4, and a buttocks support interposed between the upper body support frame 3 and the leg support frame 4 in a horizontal fixed frame 2 having a vertically long rectangular shape having legs 20,20. A frame 5 is provided.

The upper body support frame 3 comprises a back support frame 31 having a substantially square planar shape, and a horizontally long rectangular head support frame having a width in the left-right direction substantially matching the width in the left-right direction of the back support frame 31. 32, the front end portions of the left and right frame portions 311, 311 of the back support frame 31 and the base end portions of the left and right frame portions 321, 321 of the head support frame 32 are opposed to each other. And the left and right frame portions 311 of the back support frame 31.
, 311 to the right and left frame portions 2 of the horizontal fixed frame 2 respectively.
A pivot 33 is pivotally attached to the center of the inside of each of the first and second 21 so as to be able to move up and down freely. The base ends of the left and right frames 311 and 311 of the back support frame 31 are connected to the pivot 33 , 33 protruding from the base ends 311a, 311a (see FIGS. 1 to 4).

The left and right frame portions 21 of the horizontal fixed frame 2
A V-shaped horizontal support rod 24 is provided between the reinforcing rod 22 provided between the opposed inner surfaces at the center of the central part 21 and the frame part 23 on the head side of the horizontal fixed frame 2. The upper body support frame 3 is configured to be able to support its lower surface on the support rod 24 in a folded state.

Further, a drive shaft is provided between the inner surfaces of the left and right frame portions 21 and 21 of the horizontal fixed frame 2 nearer to the head side than the pivoted portions 33 and 33 of the back support frame 31 with the horizontal fixed frame 2. The drive shaft 25 is configured to be rotatable in the forward and reverse directions by a motor A disposed at the center of the horizontal fixed frame 2.

Further, each of the left and right portions of the drive shaft 25 includes:
Support arms 6, 6 having a length slightly shorter than the length of the upper body support frame 3 and having a fixed length, have their base ends fixed with their distal ends directed toward the head support frame 32. . The distal ends of the support arms 6, 6 are bent slightly obliquely upward, and rotators 61, 61, which are rotatably supported on the distal end and the upper surface of the central portion, respectively.
62, 62 are provided integrally.

Left and right receiving rods 324, 324 are provided between the left and right opposing portions of the inner and outer frame portions 322, 323 of the head support frame 32, respectively.
The one rotator 61, 61 provided integrally with the lower surface of the support arm 6 at the tip of the support arm 6, 6 is slidably supported in the longitudinal direction of the left and right receiving rods 324, 324.

The lower surfaces of the left and right receiving rods 324, 324 of the head support frame 32 are integrally provided with U-shaped rail members 324a, 324a having side upward openings, respectively. Between the 324a and the lower surface of the receiving rods 324, 324, the trocars 61, 61 of the support arms 6, 6 are attached to the receiving rods 324, 324.
, 324 are slidably disposed in the longitudinal direction.

Similarly, left and right receiving bars 314, 314 are provided between the left and right facing portions of the inner and outer frame portions 312, 313 of the back support frame 31, respectively.
The other trochanters 62, 62 having the lower surface of 314 integrally provided on the upper surface of the central portion of the support arms 6, 6 are attached to the left and right receiving rods 314, 31
4 is slidably supported in the length direction.

At the base end of the upper body support frame 3, the buttocks support frame 5 having a horizontally long rectangular shape is disposed. Then, the left and right frame portions 51 of the buttocks support frame 5,
The base end of 51 and the left and right frame portions 311 of the back support frame 31,
The base end of the back support frame 31 and the protruding base end of the left and right frame portions 311, 311.
The protruding ends of 311a, 311a and the base ends of the left and right frame portions 51, 51 of the buttocks support frame 5 are refractively connected by pins 34 (see FIG. 5).

A buttocks support rod 26 for supporting the lower surface of the buttocks support frame 5 in the longitudinal direction is provided between the left and right frame portions 21 and 21 of the horizontal fixed frame 2 so as to face the center.
A trochanter 261 is integrally provided on each of the right and left portions of the buttocks support rod 26, and the left and right frame portions 51 of the buttocks support frame 5 are placed on the trochanters 261 and 261 in the longitudinal direction. To be slidably supported.

Further, a portion of the horizontal fixed frame 2 opposite to the portion on which the upper body supporting frame 3 is provided, that is,
The leg support frame 4 is disposed on the distal end side of the buttocks support frame 5.

The leg support frame 4 is composed of a first leg support frame 41 and a second leg support frame 42, and a tip of the first leg support frame 41 and a base of the second support frame 42. The ends are opposed to each other, and the distal ends of the left and right frames 411, 411 of the first leg support frame 41 and the base ends of the left and right frames 421, 421 of the second leg support frame 42 are bent. The leg support frame 4 is freely connected, and is configured to be able to bend into a mountain shape from the center in the length direction.

Each of the base ends of the left and right frames 411, 411 of the first leg support frame 41 of the leg support frame 4 is located at the center of the left and right frames 21, 21 of the horizontal fixed frame 2. Pivotally attached to the inner surfaces 411a, 411a, respectively.

A reinforcing rod 27 for supporting a central portion of the first leg supporting frame 41 in the longitudinal direction is provided between the opposed inner surfaces of the left and right frame portions 21, 21 of the horizontal fixed frame 2, A V-shaped horizontal support rod 29 is provided between the reinforcing rod 27 and the frame 28 on the leg side of the horizontal fixed frame 2, and the leg support frame 4 is Lower the support rod
It is configured to be able to support 29.

Further, the left and right frame portions 2 of the horizontal fixed frame 2 corresponding to the central portion of the first leg support frame 41 in the length direction are provided.
A drive shaft 7 is rotatably mounted between the opposed inner surfaces 1 and 21. The drive shaft 7 is rotatable in forward and reverse directions by a motor A disposed at the center of the horizontal fixed frame 2. It is configured.

The support arms 8, 8 having a length approximately half the length of the first leg support frame 41 and having a fixed length, have their distal ends directed toward the second leg support frame 42. The base end portion is fixed to each of the left and right portions of the drive shaft 7 in a state where it is oriented.

The left and right receiving rods are provided between the left and right opposing portions of the inner and outer frame portions 412, 413 of the first leg support frame 41, respectively.
414, 414 are installed, and the left and right receiving rods 414, 41
4 are rotatably supported at the distal ends of the support arms 8 and 8 so as to be slidable in the longitudinal direction of the left and right receiving rods 414 and 414.

Next, how to use the bed will be described. A mattress B having a plane shape substantially matching the plane shape of the horizontal fixed frame 2 is placed on the upper body support frame 3, the leg support frame 4, and the buttocks support frame 5 in advance. Is lying down.

First, the procedure for changing the body position of a person placed on a mattress from a lying state to a sitting state will be described. The motor A disposed at the center of the horizontal fixed frame 2 is driven to rotate the drive shaft 25.

Then, the support arms 6, 6, which are provided integrally with the drive shaft 25, are also rotated and displaced upward along with the rotation of the drive shaft 25, and are supported by the support arms 6, 6. The back support frame 31 and the head support frame 32
Is pushed upward to rotate and displace around the base end of the back support frame 31.

At the same time that the back support frame 31 and the head support frame 32 are pivoted and displaced upward, the trochanters 61 at the distal ends of the support arms 6 are simultaneously moved by the head support frame 32. The lower surfaces of the left and right receiving rods 324, 324 are slid in the length direction and inward, and the trochanters 62, 62 on the upper surface of the central portion of the support arms 6, 6 are respectively attached to the back support frame 31. The lower surfaces of the left and right receiving rods 314, 314 are slid inward in the length direction and inward, and the head support frame 32 faces forward with respect to the back support frame 31 about its base end. Slightly rotated and displaced,
The upper body support frame 3 including the head support frame 32 and the back support frame 31 is slightly bent forward from the center (see FIG. 6).

As described above, the upper body supporting frame 3 is gradually displaced toward the front from its central portion with the upward rotation and displacement, so that the person on the bed can be seated. Since the head support frame 32 supports the head of the person on the bed from behind with an appropriate angle, the person on the bed can maintain a sitting posture in a very comfortable state.

On the other hand, with the upward rotation and displacement of the back support frame 31 about its pivotal attachment portion 33, the protruding base ends 311 of the left and right frame portions 311 and 311 of the back support frame 31.
Reference numerals a and 311a rotate and displace downwardly about the pivot portion 33.

Then, the pins 34 are attached to the projecting base ends 311a of the left and right frame portions 311 and 311 of the back support frame 31.
The buttocks support frame 5, which is connected to bend freely, has its base end displaced downward, and its central portion has trochanters 261 and 261 of the buttocks support rod 26.
The buttocks support frame 5 is displaced in a state in which the buttocks support frame 5 is inclined downward from the distal end side to the proximal end side.

As described above, the buttocks support frame 5 is displaced in a state of being inclined downward from the distal end to the proximal end with the upward rotation and displacement of the upper body support frame 3. The mattress B placed on the buttocks support frame 5 falls downward following the downward displacement of the base end side of the buttocks support frame 5, and the mattress B falls due to the downward drop, so that the mattress B becomes the upper body support frame. 3 and the buttocks support frame 5 smoothly and reliably bend, and the unexpected situation that the mattress B is shifted in the head direction or the leg direction does not occur, and therefore, the mattress B lies on the bed. The person can sit in a comfortable state in which the upper body is supported by the upper body support frame 3 while maintaining the buttocks in the lying position,
There is no burden of re-seat as in a conventional bed (see FIG. 7).

The left and right frame portions 311 of the back support frame 31
The protruding base end 311a of the back support frame 31 and the base end of the back support frame 5 are connected flexibly.
An elongated hole 9 or a notched groove 10 may be formed in one of the base end portions facing the above, and a pin or shaft 11 engaged with the elongated hole 9 or the notched groove 10 may be fixed to the other. In this case, the right and left frame portions 5 of the buttocks support frame are not
The left and right frame portions 2 of the horizontal fixed frame 2
It is also possible to adopt a structure in which each of the inner surfaces 1 and 21 is rotatably supported (see FIGS. 8 and 9).

A person lying on the bed is in a seated state in which the upper body is upright due to the upward rotation and displacement of the upper body supporting frame 3, but it is better to bend the legs slightly in this posture. If it is comfortable, the leg support frame 4 may be bent from its center to form a mountain shape. The procedure will be described below.

That is, the drive shaft 7 is rotated by the motor A disposed at the center of the horizontal fixed frame 2. Then, the support arms 8, 8 provided integrally with the drive shaft 7 are provided.
The support arm 8, 8 is also rotated and displaced upward along with the rotation of the drive shaft 7, and the support arm 8, 8 pushes the first leg support frame 41 supported by the support arm 8 upward. Then, the first leg support frame 41 is rotated and displaced upward about its base end.

A second leg support frame having a base end connected to the distal end of the first leg support frame 41 so as to be freely bent with the upward rotation and displacement of the first leg support frame 41.
42, while its base end is displaced upward,
The tip portion slides and displaces on the support rod 29 in the direction of the first leg support frame 41, and the first leg support frame is displaced.
The leg support frame 4 composed of the first leg support frame 41 and the second leg support frame 42 is bent into a mountain shape from the center (see FIG. 5).

As described above, by bending the leg support frame 4 from its central portion into a mountain shape, the mattress B placed on its upper surface also bends into a mountain shape, and
The legs of the person lying on the bed can be supported in a comfortable state bent in a mountain shape.

In the above, the procedure for changing the position of the person on the bed from the lying state to the sitting state has been described.
The procedure for changing the body position of the person on the bed from the sitting state to the lying state can be performed in a manner reverse to that described above, and a description thereof will be omitted.

[0042]

According to the bed of the present invention, the upper body supporting frame which can be raised and lowered on the horizontal rectangular fixed frame, the leg supporting frame which can be bent in the shape of a mountain, and the upper body supporting frame and the leg. In a bed having a buttocks support frame interposed between the support frame and the buttocks support frame, the buttocks support frame tilts downward from the leg support frame toward the upper body support frame side in conjunction with the standing of the upper body support frame. It is characterized by having been configured to make
The mattress placed on the support frame supports the part placed on the buttocks support frame even when bending to change the position of the person on the bed from a lying state to a sitting state. It is dropped downward while following the tilt of the frame, while maintaining the mounting position on the support frame without sliding on the support frame,
The upper body supporting frame and the buttocks supporting frame are smoothly and reliably deformed to a state substantially matching the bending state.

Therefore, a person lying on the bed has the upper body raised by the upper body supporting frame while maintaining the buttocks in the lying position, and takes a burdensome operation such as re-seating like a conventional bed. It is possible to change the posture to a sitting state comfortably without exercising.

The bed according to claim 2 is the bed according to claim 1, wherein the tilting means of the buttocks support frame is
The base end of the upper body supporting frame pivotally attached to the horizontal fixing frame is formed at the projecting base end projecting from the pivoted portion toward the buttocks supporting frame, while the buttocks supporting frame is attached to the horizontal fixing frame. It is characterized in that it is supported so as to be tiltable downward from its distal end side toward its proximal end side, and the proximal end of this hip support frame is connected to the protruding proximal end of the upper body support frame so as to be freely bent. In accordance with the upward rotation and displacement of the upper body support frame, the buttocks support frame can be smoothly and reliably tilted downward from the distal end side toward the proximal end side. The mattress placed on the support frame can be smoothly and reliably bent without sliding on the support frame.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bed of the present invention.

FIG. 2 is a plan view showing the bed of the present invention.

FIG. 3 is a perspective view showing a connection state between a back support frame and a buttock support frame.

FIG. 4 is a perspective view showing a connection state between a back support frame and a buttock support frame.

FIG. 5 is a side view showing a pivotal connection between the buttocks support frame and the back support frame.

FIG. 6 is a side view showing the bed of the present invention.

FIG. 7 is a schematic diagram showing a state in which a person on a bed changes his or her posture from a lying state to a sitting state.

FIG. 8 is a side view showing another structure of the pivotal connection between the hip support frame and the back support frame.

FIG. 9 is a side view showing another structure of the pivotal connection between the buttocks support frame and the back support frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed 2 Horizontal fixed frame 3 Upper body support frame 31 Back support frame 311a Protruding base end 32 Head support frame 33 Pivot part 34 Pivot part 4 Leg support frame 41 First leg support frame 42 Second leg support Frame 5 Hip support frame 6, 8 Support arm

Claims (2)

[Claims] 1. An upper body supporting frame that can be raised and lowered on a horizontal rectangular fixed frame, a leg supporting frame that can be bent into a mountain shape, and a buttocks interposed between the upper body supporting frame and the leg supporting frame. In a bed provided with a support frame, the buttocks support frame is configured to be tilted downward from the leg support frame toward the upper body support frame side in conjunction with the standing of the upper body support frame. Bed. 2. The tilting means of the buttocks support frame includes a projecting base end projecting from a base end of the upper body support frame pivotally attached to the horizontal fixed frame to the buttocks support frame side. On the other hand, the buttocks support frame is supported by the horizontal fixed frame so as to be tiltable downward from its distal end toward the base end, and the proximal end of this buttocks support frame is attached to the protruding proximal end of the upper body support frame. The bed according to claim 1, wherein the bed is connected to bend freely.